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Effects of Oxygen Stoichiometry on The Magnetic Ordering of La2Ni1-YCuY04+δ

Published online by Cambridge University Press:  28 February 2011

J. Zhao
Affiliation:
Physics Department, West Virginia University, Morgantown, WV 26506
V. Suresh Babu
Affiliation:
Physics Department, West Virginia University, Morgantown, WV 26506
Mohindar S. Seehra
Affiliation:
Physics Department, West Virginia University, Morgantown, WV 26506
Aloysius F. Hepp
Affiliation:
NASA Lewis Research Center, MS 302‐1, Cleveland, OH 44135
James R. Gaier
Affiliation:
NASA Lewis Research Center, MS 302‐1, Cleveland, OH 44135
Robert M. Richman
Affiliation:
Science Department, Mount St. Mary's College, Emmitsburg, MD 21727
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Abstract

Annealing and quenching experiments in a thermogravimetric analysis apparatus are used to vary the oxygen content in La2Ni1‐yCuy04+δ, followed by magnetic susceptibility and x‐ray diffraction experiments. These studies show that for certain δ, transition to antiferromagnetism occurs with TN < 20 K. The effect of Cu doping (y = 0.01 and 0.05) on TN is negligible.

Type
Research Article
Copyright
Copyright © Materials Research Society 1990

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